Focusing control device, lens device, imaging apparatus, focusing control method, and focusing control program

A focusing control device, included in a lens device which is used with a camera device, comprising:

• a sensor that outputs a pair of image signals deviated in one direction on the basis of one subject light image;
• a phase difference detection section that detects a phase difference between the pair of image signals which are output from the sensor;
• an optical element that guides a part of subject light, which is incident into an imaging optical system including a focus lens, into an imaging element which captures a subject light image through the imaging optical system, and guides the other part of the subject light into the sensor;
• an optical system that is provided between the optical element and the sensor;
• a temperature detection section that detects a temperature;
• a focus lens position detection section that detects a position of the focus lens;
• a storage section that stores data in which the temperature, the position of the focus lens, and information for in-focus position correction are associated with one another;
• a correction section that corrects the in-focus position of the focus lens based on the detection phase difference, which is the phase difference detected by the phase difference detection section, on the basis of the data which is stored in the storage section, the temperature which is detected by the temperature detection section, and the position of the focus lens which is detected by the focus lens position detection section;
• and
• a lens control section that moves the focus lens to the in-focus position which is corrected by the correction section.